Data Center Multi-Layer VPC design aggregation layer failure scenarios are depicted in this document. The tests involve a multiple VPC domain design with VPC extended from Core to Aggregation as well as Aggregation to Access. The Failure scenarios covered in this test document are the following:

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Data Center Multi-Layer VPC design aggregation layer failure scenarios are depicted in this document. The tests involve a multiple VPC domain design with VPC extended from Core to Aggregation as well as Aggregation to Access. The Failure scenarios covered in this test document are the following

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* Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

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* Failure of a single link in the Peer-link bundle - simulated by shutting down either Ethernet2/1 on the AGG1 router

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* Failure of the peer-link port-channel - simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers

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* SFM module failure on Aggregation router

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* Supervisor failure/switchover on an aggregation router

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* Linecard failure on the AGG1 router

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* Failure of an aggregation node

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* Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

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'''Data to Record'''

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* Failure of a single link in the Peer-link bundle- Simulated by shutting down either Ethernet2/1 on the AGG1 router

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* Failure of the peer-link port-channel- Simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers

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* SFM module failure on Aggregation router

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* Supervisor Failure/switchover on an aggregation router

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* Linecard failure on the AGG1 router

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* Failure of an aggregation node

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DATA TO RECORD

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Verification of operation of VPC and its configuration using the following commands:

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Verification of operation of VPC and its configuration using the following commands

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* show vpc brief

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* show port-channel summary

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* show port-channel traffic

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* show run int port-channel xxxx

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* show run vpc

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* show vpc brief

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Estimated Time: 120 minutes

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* show port-channel summary

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* show port-channel traffic

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* show run int port-channel xxxx

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* show run vpc

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ESTIMATED TIME 120 minutes

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==Topology==

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Click on thumbnail to enlarge:

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[[Image:CPoC Diagram_Customer-Friendly.jpg|200px|thumb|left]]

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<br>

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<br>

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<br>

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<br>

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<br>

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<br>

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<br>

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<br>

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<br>

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<br>

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<!--Describe the purpose of the example and any unique characteristics of this configuration-->

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== Procedures ==

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==Design==

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1. This document highlights the failure scenarios with the above mentioned topology in the Aggregation layer.

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<!--Describe any setup details of this configuration and include a topology-->

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2. The following failures were conducted on the Aggregation layer to verify the operation and resiliency of VPC in a multi-domain VPC environment with the entire Data Center running on VPC.

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[[Image:sample_topology.jpg]]

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* Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

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* Failure of a single link in the Peer-link bundle- Simulated by shutting down either Ethernet2/1 on the AGG1 router

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* Failure of the peer-link port-channel- Simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers

1. This document highlights the failure scenarios with the above mentioned topology in the Aggregation layer.

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!Command: show running-config interface Vlan100

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2. The following failures were conducted on the Aggregation layer to verify the operation and resiliency of VPC in a multi-domain VPC environment with the entire Data Center running on VPC.

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-

* Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

-

* Failure of a single link in the Peer-link bundle- Simulated by shutting down either Ethernet2/1 on the AGG1 router

-

* Failure of the peer-link port-channel- Simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers

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* SFM module failure on Aggregation router

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* Supervisor Failure/switchover on an aggregation router

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* Linecard failure on the AGG1 router

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* Failure of an aggregation node

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==Related show Commands==

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version 4.2(1)

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This section provides information you can use to confirm your configuration is working properly.

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Certain show commands are supported by the [https://www.cisco.com/cgi-bin/Support/OutputInterpreter/home.pl Output Interpreter Tool (registered customers only)], which allows you to view an analysis of show command output.

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interface Vlan100

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no shutdown

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description Server Subnet - Vlan 100

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ip address 100.100.11.1/24

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ip router ospf 100 area 0.0.0.0

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hsrp 100

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preempt delay minimum 15

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priority 120

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timers 1 3

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ip 100.100.11.254

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<!--Add steps to verify that the config is working, including which show commands to use-->

Latest revision as of 21:38, 18 November 2011

Contents

Introduction

Test Details: Goals of this test

Data Center Multi-Layer VPC design aggregation layer failure scenarios are depicted in this document. The tests involve a multiple VPC domain design with VPC extended from Core to Aggregation as well as Aggregation to Access. The Failure scenarios covered in this test document are the following:

Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

Failure of a single link in the Peer-link bundle - simulated by shutting down either Ethernet2/1 on the AGG1 router

Failure of the peer-link port-channel - simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers

SFM module failure on Aggregation router

Supervisor failure/switchover on an aggregation router

Linecard failure on the AGG1 router

Failure of an aggregation node

Data to Record

Verification of operation of VPC and its configuration using the following commands:

show vpc brief

show port-channel summary

show port-channel traffic

show run int port-channel xxxx

show run vpc

Estimated Time: 120 minutes

Topology

Click on thumbnail to enlarge:

Procedures

1. This document highlights the failure scenarios with the above mentioned topology in the Aggregation layer.

2. The following failures were conducted on the Aggregation layer to verify the operation and resiliency of VPC in a multi-domain VPC environment with the entire Data Center running on VPC.

Failure of the Peer Keepalive link - simulated by the shutdown of Ethernet1/1 on AGG1 router

Failure of a single link in the Peer-link bundle- Simulated by shutting down either Ethernet2/1 on the AGG1 router

Failure of the peer-link port-channel- Simulated by shutting down the Port-channel 3000 interface between AGG1 and AGG2 routers